Mysterium on the Game Boy yɛ saa Japan-only titles nketewa a ɛyɛ nwonwa a ɛma wo kɔ no mu biako, "Twɛn, dɛn ne eyi?" Sɛ wohwɛ no yiye a. Ɛwɔ saa eerie, ɛkame ayɛ sɛ daeɛ vibe —te sɛ sɛ obi fa point-and-click adventure na ɔde pia kɔ nsa so a pixelated ghosts a wɔrehuruhuruw di akɔneaba. Wopopa adan a hann kakraa bi na ɛwom, na wofa nneɛma a ɛyɛ nwonwa na wobɔ mmɔden sɛ wobɛka nea ɛrekɔ so no abom.

Controls no yɛ classic game boy clunk, enti hwɛ kwan sɛ wobɛsɔ ahwɛ na mfomso bi afi sɛnea wo ne nneɛma bedi nkitaho no mu. Nanso biribi a ɛyɛ nwonwa a ɛyɛ nwonwa wɔ hɔ a ɛfa mfonini ahorow a ɛyɛ grainy ne nnyigyei a ɛyɛ mmerɛw na ɛyɛ hu ho. Ɛnyɛ hu ankasa, kɛkɛ... unsettling wɔ saa anadwo anadwo, playing-under-the-covers way. Sɛ wowɔ retro curios a ɛyɛ hu mu a, eyi yɛ bere capsule a ɛyɛ fɛ.